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Creating a DLL file

Posted By:Syed Shakeer Hussain       Posted Date: September 19, 2010    Points: 25    Category: .Net Framework    URL: http://www.dotnetspark.com  

This article will show how to Create a DLL file in .NET framework using Visual Studio
 

Creating a dll file.

 

To create a dll follow the below steps

 

Open 'Visual Studio' and select File -> Open -> New ->Project

 

 

 

Click on ok Button. Once you click on Ok 'Button' your Class Library looks as follows.

 

 

 

Now you can add you code what you need.Here I am taking one Return data type String function. This function I will use in another project (.aspx) and showing the Result in a TextBox.

 

namespace MyClassLibraryConsole

{

public class Class1

{

public string strfunction(string input)

{

string strmessage = input;

return strmessage;

}

}

}

Now you have to call this function in another project.Add New (or)Existing Project to your Solution.Here i am adding Existing .asp webpages to my solution as follows.

 

 

Once you added your New or Existing Project your Solution will looks as follows 

 

 

 

Adding created dll file to .asp solution:-

Ricght click on DllDemo(.asp) solution and click on the select 'Add Reference'.

 

Now you can find dialog Box.Select 3rd tab 'Projects'.Now can find your created ClassLibrary(dll) as 'MyClassLibraryconsole'.Select it and click 'OK' button.

 

Now your dll is added successfully to your website.You can see your added dll in solution Explorer.

 

Calling dll file function in .aspx.cs page:-

protected void Button1_Click(object sender, EventArgs e)

{

MyClassLibraryConsole.Class1 obj = new MyClassLibraryConsole.Class1();

TextBox1.Text = obj.strfunction("Hellow World");

}

Showing the Result in TextBox

Thanks for Reading my Article!

Shakeer


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